Wilson ager



(No Model.)

WV. AGE'R.

GRAIN DEIGORTIGATING APfARATUS. I No. 258,339. Patented May 23, 18 82;.

, UNITE STATES PATENT OFFICE.

WILSON AGER, OF WASHINGTON, DISTRICT OF COLUMBIA.

GRAlN-DECORTICATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 258,339, dated May 23, 1882,

Application filed July 30, 1881. (No model.)

To all whom it may concern:

Be it known that I, WILSON AGER, of Washington city, in the county of WVashington, and in the District of Columbia, have invented certain new and useful Improvements in Grain- Decorticating Apparatus; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the let'- ters of reference marked thereon, making a part of this specification.

This invention relates to certain improvements in apparatus for decorticating grain and cereals; and it consistsin the combination and arrangement of parts, as more fully hereinafter set forth, and specifically pointed out in the claims.

In the drawings, Figure 1 represents a longitudinal vertical sectional view of my improved decorticator 5 Fig. 2, a transverse vertical section of the same; and Fig. 3, a detached view of one of the decorticating-arms, which is to be secured to the rotating shaft of the apparatus. Fig. 4 represents a perspective view of theapparatus complete, showing the mechanism for rotating the shaft and cylinder carrying the decorticators in opposite directions.

The letter indicates a cylindrical screen,

suitably mounted so as to be properly rotated. The said screen on its interior is provided with a series of decorticators, (indicated respectively by the letters B and 0.) These decorticators maybe constructed ofsteel with filesurfaces, or of compressed emery, or natural or artificial abrasive stone, as may be desired. They are arranged in the screen in alternate long and short sections, as shown in the drawings, so as to offer abrasive surfaces at b c'to the grain, which passes in a body through the ural or artificial abrasive material, such as are arranged in the screen in alternate long and short sections, and that the screen revolves in an opposite direction to the motion given to the central shaft and its decorticating-arms.

The object in viewviz., thoroughly decorticating the grain in its passage through the apparatus-gan only be successfully obtained by constructing the serrated arms or teeth and arranging them so that every grain shall be repeatedly acted on by said decorticatingsurfaces. It will be seen that the grain, during its passage through the cylinder, is not only thoroughly stirred, but that it is compelled to pass between the short and long. teeth, over the long teeth and short teeth, and against the abrading-surfaces thereof. I produce variable or fast and slow movements of the streams of grain, some of the teeth impelling the grain fast in one direction, while others give it a comparatively slow motion in another direction. Then, again, it will be seen that the teeth or arms on the shaft JD operate between the longer teeth and past the shorter teeth on the screen-cylinder. The essential feature of my invention is therefore the employment of alternate long and short abrading and decorticating teeth or arms in the cylinder.

To carry off the dust or outerintegument removed from the grain or cereals, a forced blast of air may be induced through the apparatus, or an exhaust-current may be established by means of suitable mechanism.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s-- 1; In an apparatus for decorticating grain,

whole arranged to operate substantially in the In testimony whereof I affix my signature, manner explained. in presence of two witnesses, this 25th day of 2. In an apparatus for decorticating grain or J uly, 1881. .cereals, the rotary screen, having alternate 5 long and short decorticators on the interior WILSON AGER,

thereof, the rotary shaft, and decorticators, the two being adapted to operate as described, in Witnesses: combination with air-exhaust mechanism to J. J. MCCARTHY, remove the dust and decorticated hulls, sub- 0. D. DAVIS. 10 stantia-lly as and for the purposes described. 

